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Repeat String - Javascript
...;>= 1, pattern += pattern;
}
return result + pattern;
}
It is based on artistoex algorithm.
It is really fast. And the bigger the count, the faster it goes compared with the traditional new Array(count + 1).join(string) approach.
I've only changed 2 things:
replaced pattern = this ...
How do I change the working directory in Python?
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cdunn2001's lightweight decorator-based answer is the ideal approach for modern Python. The above answer demonstrates why. Never call os.chdir() outside of a context manager, unless you think you know what you're doing. (You probably don't.)
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How do I delete rows in a data frame?
... data may change in the future. A general principle of a data.frame or database tables is that the order of the rows should not matter. If the order does matter, this should be encoded in an actual variable in the data.frame.
For example, imagine you imported a dataset and deleted rows by numeric...
How do I terminate a thread in C++11?
... advise developer or even require build multithreading applications on the base of cooperative or synchronous thread termination. The reason for this common decisions and advices is that all they are built on the base of the same general multithreading model.
Let's compare multiprocessing and multi...
Revert changes to a file in a commit
...2:
aaa333 Good commit
aaa222 Problem commit containing badfile.txt
aaa111 Base commit
Rebase on the base commit, amend the problem commit, & continue.
1) Start interactive rebase:
git rebase -i aaa111
2) Mark the problem commit for edit in the editor by changing pick to e (for edit):
e a...
How to do joins in LINQ on multiple fields in single join
...es, anyway), and indeed that's what you've said you want to express anyway based on your original query.
If you don't like the version with the anonymous type for some specific reason, you should explain that reason.
If you want to do something other than what you originally asked for, please give...
How to find which rspec test is taking so long
...s.
For RSpec 1, you can use --format o with spec command. It shows a text-based progress bar with profiling of 10 slowest examples. For more details see this.
rspec --profile -- path/to/file/spec.rb
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Can an Android NFC phone act as an NFC tag?
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This is outdated. Android 4.4 has host-based card emulation, which allows precisely this: developer.android.com/guide/topics/connectivity/nfc/hce.html
– Trevor Johns
Jan 26 '14 at 18:42
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How to reverse a string in Go?
...y.golang.org/p/sBgZAV7gCb, the combining character is not swapped with its base.
– chowey
Jan 17 '15 at 2:59
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How do I calculate the date six months from the current date using the datetime Python module?
...f the answers on this page do not.
You need to first shift the months from base 1 (ie Jan = 1) to base 0 (ie Jan = 0) before using modulus ( % ) or integer division ( // ), otherwise November (11) plus 1 month gives you 12, which when finding the remainder ( 12 % 12 ) gives 0.
(And dont suggest "(m...